#64837E
Closest named color: Steel Grey (#6F828A). oklch(58.5% 0.036 184.1), rgb(100, 131, 126).
Aa
Black text reads best on this color (5.08:1).
About this color
#64837E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.036 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.026 away. Black text reads best on it, at 5.08:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #64837E |
| RGB | rgb(100, 131, 126) |
| HSL | hsl(170, 13%, 45%) |
| OKLCH | oklch(58.5% 0.036 184.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #64837E | 4.12:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #64837E | 5.08:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #64837E text on white | 4.12:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #64837E text on black | 5.08:1 | AA | Lc -33.3 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D3DBDA
oklch(88.5% 0.009 188.1)
-
Step 300
300
#B6C4C2
oklch(80.9% 0.016 186.6)
-
Step 400
400
#8FA6A2
oklch(70.6% 0.026 183.9)
-
Step 500
500
#74908C
oklch(63.1% 0.032 185.8)
-
Step 600
600 (this color)
#64837E
oklch(58.5% 0.036 184.1)
-
Step 700
700
#4B6763
oklch(49% 0.034 185.3)
-
Step 800
800
#3E5451
oklch(42.7% 0.027 185.9)
-
Step 900
900
#354543
oklch(37.6% 0.021 186.9)
-
Step 950
950
#1F2927
oklch(27.1% 0.014 181.6)
#64837E with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #807F7E | 0.039 |
| Deuteranopia (no green cones) | #7A7B7E | 0.036 |
| Tritanopia (no blue cones) | #5B8481 | 0.011 |
| Achromatopsia (no color) | #7D7D7D | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64837E
#64837E
oklch(58.5% 0.036 184.1)
- #8F7379
#8F7379
oklch(58.4% 0.036 3.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #64837E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.026
- Battleship Grey #6B7C85 ΔE 0.028
- Medium Grey #7D7F7C ΔE 0.034
- Grey Blue #647D8E ΔE 0.035
- Slate Gray #708090 ΔE 0.037
- Gray #808080 ΔE 0.039
- Dusty Teal #4C9085 ΔE 0.041
- Battleship Gray #6C757D ΔE 0.042
Use #64837E in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.